Prince Constantijn and Princess Laurentien attend the award ceremony of the World Press Photo in Muziekgebouw Aant IJ in Amsterdam, The Netherlands, 22 April 2017. Winner of this year is Turkish AP photographer Burhan Ozbilici with his winning picture the murder of Russian ambassador Andrey Karlov 19 December in Ankara. Photo: Patrick van Katwijk NETHERLANDS OUT POINT DE VUE OUT - NO WIRE SERVICE - Photo: Patrick van Katwijk/Dutch Photo Press/dpa